再鼎医药（09688.HK）今日盘中股价大涨6.63%，引发市场广泛关注。该股在早盘交易时段表现强劲，成交活跃，显示投资者对公司前景持积极态度。
此次股价上涨主要受到大股东增持消息的刺激。根据香港联交所6月3日披露的文件，RTW Fund Group GP, LLC于5月27日以每股均价3.099美元增持再鼎医药591.43万股普通股股份，总价值约1,832.83万美元。增持后，RTW Fund Group GP, LLC最新持股数目达到5,610.11万股，持股比例从4.55%上升至5.08%。这一重大增持行为被市场解读为对再鼎医药未来发展的信心表示。
再鼎医药作为一家生物制药公司，主要致力于解决肿瘤、自身免疫疾病、感染性疾病和中枢神经系统疾病领域的未满足医疗需求。公司拥有从发现阶段到临床项目后期的一系列专利候选药物，包括"则乐"、"OPTUNE"、"擎乐"、"纽再乐"及"卫伟迦"等。最近的财报显示，公司实现营业收入8.28亿港元，虽然净利润为-3.77亿港元，但88%的券商仍给予买入评级，反映出市场对公司长期发展前景的看好。
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